Doctor profile · Federal record

Dr. Donald Keen, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Sheboygan, WI

  • NPI 1669793147
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3400 Union Ave
Sheboygan, WI 530818426
(920) 802-2605
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
April 8, 2025
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Wisconsin #73394
Medicaid
WI #100100449

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669793147. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
113
Distinct HCPCS
3
Medicare allowed
$10,885
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 84 84 $86
0241U Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected 16 16 $140
99203 New patient office or other outpatient visit, 30-44 minutes 13 13 $106

In context: peer comparison

Among 6 peers in Sheboygan Emergency Medicine Physician, average services per provider: 75. This provider delivers 1.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
45
Patients
45
Total drug cost
$456
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 15 15 $144
Cephalexin Generic 15 15 $99
Doxycycline Hyclate Generic 15 15 $213

Frequently asked questions

Auto-generated from federal data
What is Dr. Donald Keen's medical specialty?
Dr. Donald Keen practices Emergency Medicine Physician in Sheboygan, WI.
Where does Dr. Donald Keen practice?
Dr. Donald Keen practices at 3400 Union Ave, Sheboygan, WI 530818426. Office phone: 9208022605.
What is Dr. Donald Keen's NPI?
Dr. Donald Keen's National Provider Identifier (NPI) is 1669793147, issued by NPPES.
Does Dr. Donald Keen accept Medicare assignment?
Yes. Dr. Donald Keen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Donald Keen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected (HCPCS 0241U); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.